JP2009188133A - 半導体膜の製造方法、半導体装置の製造方法、電子機器の製造方法、半導体膜、半導体装置および電子機器 - Google Patents
半導体膜の製造方法、半導体装置の製造方法、電子機器の製造方法、半導体膜、半導体装置および電子機器 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 58
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 37
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 143
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 135
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 86
- 239000010703 silicon Substances 0.000 claims abstract description 85
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 84
- 238000000034 method Methods 0.000 claims abstract description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 15
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- 230000001678 irradiating effect Effects 0.000 claims abstract description 6
- 239000000758 substrate Substances 0.000 claims description 40
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- 230000008018 melting Effects 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 6
- 238000002679 ablation Methods 0.000 claims description 3
- HMDDXIMCDZRSNE-UHFFFAOYSA-N [C].[Si] Chemical compound [C].[Si] HMDDXIMCDZRSNE-UHFFFAOYSA-N 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 21
- 239000012535 impurity Substances 0.000 description 9
- 239000010410 layer Substances 0.000 description 8
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- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 229910018540 Si C Inorganic materials 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005468 ion implantation Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000005224 laser annealing Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
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- 230000015572 biosynthetic process Effects 0.000 description 1
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- 238000000407 epitaxy Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
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- 239000000047 product Substances 0.000 description 1
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- 230000008016 vaporization Effects 0.000 description 1
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Abstract
【解決手段】第1シリコン膜S1上に炭素源ガスを供給することにより前記シリコン膜上に第1炭化シリコン膜3を形成する第1工程と、前記第1炭化シリコン膜上に、第2シリコン膜5を形成する第2工程と、前記第2シリコン膜上にレーザを照射する第3工程と、前記第3工程後の前記第1炭化シリコン膜上に炭素源ガスおよび珪素源ガスを供給することにより第2炭化シリコン膜を形成する第4工程と、を有する。かかる方法によれば、レーザ照射により、第1炭化シリコン膜3を改質でき、当該膜上に成長する第2炭化シリコン膜の特性が良好となる。
【選択図】図1
Description
図1〜図4は、本実施の形態の半導体膜の製造工程を示す断面図である。以下に、図1〜図4を参照しながら、本実施の形態の半導体膜(炭化シリコン膜)の製造方法を説明する。
本実施の形態においては、実施の形態1で形成したSiC膜(7)の半導体装置への適用について説明する。
また、上記デバイス(半導体装置)は、各種電子機器に適用可能である。適用可能な電子機器に限定はないが、例えば、プロジェクタへ適用することができる。図7は、電子機器の例としてプロジェクタを示す斜視図である。
Claims (12)
- 第1シリコン膜上に炭素源ガスを供給することにより前記シリコン膜上に第1炭化シリコン膜を形成する第1工程と、
前記第1炭化シリコン膜上に、第2シリコン膜を形成する第2工程と、
前記第2シリコン膜上にレーザを照射する第3工程と、
前記第3工程後の前記第1炭化シリコン膜上に炭素源ガスおよびシリコン源ガスを供給することにより第2炭化シリコン膜を形成する第4工程と、
を有することを特徴とする半導体膜の製造方法。 - 前記第1シリコン膜は、シリコン基板であり、前記第2シリコン膜はアモルファスシリコン膜であることを特徴とする請求項1記載の半導体膜の製造方法。
- 前記第3工程は、前記第1炭化シリコン膜の結晶性を向上させる工程であることを特徴とする請求項1又は2記載の半導体膜の製造方法。
- 前記第3工程は、前記第1炭化シリコン膜又は前記第1炭化シリコン膜と第2シリコン膜の界面において、前記レーザ照射によりシリコンおよび炭化シリコンを溶融し、炭化シリコンを再結晶化させる工程であることを特徴とする請求項3記載の半導体膜の製造方法。
- 前記第2シリコン膜の膜厚は、1nm以上50nm以下であることを特徴とする請求項1乃至4のいずれか一項記載の半導体膜の製造方法。
- 前記レーザは、XeClレーザ、KrFレーザ、ArFレーザ又はF2レーザであることを特徴とする請求項1乃至5のいずれか一項記載の半導体膜の製造方法。
- 前記レーザの強度は、前記第2シリコン膜にアブレーションを生じさせる強度より小さいことを特徴とする請求項1乃至6のいずれか一項記載の半導体膜の製造方法。
- 前記第3工程と第4工程の間に、
前記第1炭化シリコン膜上に残存する第2シリコン膜を除去する工程を有することを特徴とする請求項1乃至7のいずれか一項記載の半導体膜の製造方法。 - 請求項1乃至8のいずれか一項記載の半導体膜の製造方法を有することを特徴とする半導体装置の製造方法。
- 請求項9記載の半導体装置の製造方法を有することを特徴とする電子機器の製造方法。
- 第1炭化シリコン膜と第2シリコン膜との積層膜上にレーザを照射することにより形成された第2炭化シリコン膜をシード膜として成長した第3炭化シリコン膜を有することを特徴とする半導体膜。
- 請求項11記載の半導体装置を有することを特徴とする電子機器。
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CN103578933A (zh) * | 2012-08-06 | 2014-02-12 | 通用电气公司 | 具有降低的偏置温度不稳定性(bti)的器件 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01297813A (ja) * | 1988-05-25 | 1989-11-30 | Sony Corp | シリコンカーバイドの製造方法 |
JPH03173418A (ja) * | 1989-12-01 | 1991-07-26 | Nec Corp | 表面改質方法及び表面改質装置 |
JP2005223215A (ja) * | 2004-02-06 | 2005-08-18 | Japan Science & Technology Agency | Si基板上への炭化珪素単結晶膜の製造方法及びそれを用いて製造される炭化珪素半導体装置 |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01297813A (ja) * | 1988-05-25 | 1989-11-30 | Sony Corp | シリコンカーバイドの製造方法 |
JPH03173418A (ja) * | 1989-12-01 | 1991-07-26 | Nec Corp | 表面改質方法及び表面改質装置 |
JP2005223215A (ja) * | 2004-02-06 | 2005-08-18 | Japan Science & Technology Agency | Si基板上への炭化珪素単結晶膜の製造方法及びそれを用いて製造される炭化珪素半導体装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103578933A (zh) * | 2012-08-06 | 2014-02-12 | 通用电气公司 | 具有降低的偏置温度不稳定性(bti)的器件 |
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